Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Ortopedia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162016000200200 |
Resumo: | OBJECTIVE: To correlate the angles between the acetabulum and the proximal femur in symptomatic patients with femoroacetabular impingement (FAI), using computed tomography (CT). METHODS: We retrospectively evaluated 103 hips from 103 patients, using multislice CT to measure the acetabular age, acetabular version (in its supraequatorial portion and in its middle third), femoral neck version, cervical-diaphyseal and alpha angles and the acetabular depth. For the statistical analysis, we used the Pearson correlation coefficient. RESULTS: There were inverse correlations between the following angles: (1) acetabular coverage versus alpha angle (p = 0.019); (2) acetabular version (supraequatorial) versus alpha angle (p = 0.049). For patients with femoral anteversion lower than 15 degrees: (1) acetabular version (supraequatorial) versus alpha angle (p = 0.026); (2) acetabular version (middle third) versus alpha angle (p = 0.02). For patients with acetabular version (supraequatorial) lower than 10 degrees: (1) acetabular version (supraequatorial) versus alpha angle (p = 0.004); (2) acetabular version (middle third) versus alpha angle (p = 0.009). CONCLUSION: There was a statistically significant inverse correlation between the acetabular version and alpha angles (the smaller the acetabular anteversion angle was, the larger the alpha angle was) in symptomatic patients, thus supporting the hypothesis that FAI occurs when cam and pincer findings due to acetabular retroversion are seen simultaneously, and that the latter alone does not cause FAI, which leads to overdiagnosis in these cases. |
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Revista Brasileira de Ortopedia (Online) |
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Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patientsHipFemoroacetabular impingementX-ray computed tomography OBJECTIVE: To correlate the angles between the acetabulum and the proximal femur in symptomatic patients with femoroacetabular impingement (FAI), using computed tomography (CT). METHODS: We retrospectively evaluated 103 hips from 103 patients, using multislice CT to measure the acetabular age, acetabular version (in its supraequatorial portion and in its middle third), femoral neck version, cervical-diaphyseal and alpha angles and the acetabular depth. For the statistical analysis, we used the Pearson correlation coefficient. RESULTS: There were inverse correlations between the following angles: (1) acetabular coverage versus alpha angle (p = 0.019); (2) acetabular version (supraequatorial) versus alpha angle (p = 0.049). For patients with femoral anteversion lower than 15 degrees: (1) acetabular version (supraequatorial) versus alpha angle (p = 0.026); (2) acetabular version (middle third) versus alpha angle (p = 0.02). For patients with acetabular version (supraequatorial) lower than 10 degrees: (1) acetabular version (supraequatorial) versus alpha angle (p = 0.004); (2) acetabular version (middle third) versus alpha angle (p = 0.009). CONCLUSION: There was a statistically significant inverse correlation between the acetabular version and alpha angles (the smaller the acetabular anteversion angle was, the larger the alpha angle was) in symptomatic patients, thus supporting the hypothesis that FAI occurs when cam and pincer findings due to acetabular retroversion are seen simultaneously, and that the latter alone does not cause FAI, which leads to overdiagnosis in these cases.Sociedade Brasileira de Ortopedia e Traumatologia2016-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162016000200200Revista Brasileira de Ortopedia v.51 n.2 2016reponame:Revista Brasileira de Ortopedia (Online)instname:Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)instacron:SBOT10.1016/j.rboe.2016.02.001info:eu-repo/semantics/openAccessCanella,Richard PrazeresAdam,Guilherme PradiCastillo,Roberto André Ulhôa deCodonho,DanielGanev,Gerson GandhiVicenzi,Luiz Fernando deeng2016-04-13T00:00:00Zoai:scielo:S0102-36162016000200200Revistahttp://www.rbo.org.br/https://old.scielo.br/oai/scielo-oai.php||rbo@sbot.org.br1982-43780102-3616opendoar:2016-04-13T00:00Revista Brasileira de Ortopedia (Online) - Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)false |
dc.title.none.fl_str_mv |
Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients |
title |
Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients |
spellingShingle |
Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients Canella,Richard Prazeres Hip Femoroacetabular impingement X-ray computed tomography |
title_short |
Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients |
title_full |
Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients |
title_fullStr |
Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients |
title_full_unstemmed |
Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients |
title_sort |
Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients |
author |
Canella,Richard Prazeres |
author_facet |
Canella,Richard Prazeres Adam,Guilherme Pradi Castillo,Roberto André Ulhôa de Codonho,Daniel Ganev,Gerson Gandhi Vicenzi,Luiz Fernando de |
author_role |
author |
author2 |
Adam,Guilherme Pradi Castillo,Roberto André Ulhôa de Codonho,Daniel Ganev,Gerson Gandhi Vicenzi,Luiz Fernando de |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Canella,Richard Prazeres Adam,Guilherme Pradi Castillo,Roberto André Ulhôa de Codonho,Daniel Ganev,Gerson Gandhi Vicenzi,Luiz Fernando de |
dc.subject.por.fl_str_mv |
Hip Femoroacetabular impingement X-ray computed tomography |
topic |
Hip Femoroacetabular impingement X-ray computed tomography |
description |
OBJECTIVE: To correlate the angles between the acetabulum and the proximal femur in symptomatic patients with femoroacetabular impingement (FAI), using computed tomography (CT). METHODS: We retrospectively evaluated 103 hips from 103 patients, using multislice CT to measure the acetabular age, acetabular version (in its supraequatorial portion and in its middle third), femoral neck version, cervical-diaphyseal and alpha angles and the acetabular depth. For the statistical analysis, we used the Pearson correlation coefficient. RESULTS: There were inverse correlations between the following angles: (1) acetabular coverage versus alpha angle (p = 0.019); (2) acetabular version (supraequatorial) versus alpha angle (p = 0.049). For patients with femoral anteversion lower than 15 degrees: (1) acetabular version (supraequatorial) versus alpha angle (p = 0.026); (2) acetabular version (middle third) versus alpha angle (p = 0.02). For patients with acetabular version (supraequatorial) lower than 10 degrees: (1) acetabular version (supraequatorial) versus alpha angle (p = 0.004); (2) acetabular version (middle third) versus alpha angle (p = 0.009). CONCLUSION: There was a statistically significant inverse correlation between the acetabular version and alpha angles (the smaller the acetabular anteversion angle was, the larger the alpha angle was) in symptomatic patients, thus supporting the hypothesis that FAI occurs when cam and pincer findings due to acetabular retroversion are seen simultaneously, and that the latter alone does not cause FAI, which leads to overdiagnosis in these cases. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-04-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162016000200200 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162016000200200 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1016/j.rboe.2016.02.001 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Ortopedia e Traumatologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ortopedia e Traumatologia |
dc.source.none.fl_str_mv |
Revista Brasileira de Ortopedia v.51 n.2 2016 reponame:Revista Brasileira de Ortopedia (Online) instname:Sociedade Brasileira de Ortopedia e Traumatologia (SBOT) instacron:SBOT |
instname_str |
Sociedade Brasileira de Ortopedia e Traumatologia (SBOT) |
instacron_str |
SBOT |
institution |
SBOT |
reponame_str |
Revista Brasileira de Ortopedia (Online) |
collection |
Revista Brasileira de Ortopedia (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Ortopedia (Online) - Sociedade Brasileira de Ortopedia e Traumatologia (SBOT) |
repository.mail.fl_str_mv |
||rbo@sbot.org.br |
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1752122360114184192 |